document.write( "Question 209408: how is this problem factored.\r
\n" ); document.write( "\n" ); document.write( " 3xy^2+11xy-20x
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Algebra.Com's Answer #158341 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
how is this problem factored.
\n" ); document.write( "3xy^2+11xy-20x
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\n" ); document.write( "Think of two numbers whose product is 3*-120 = -60
\n" ); document.write( "and whose sum or difference is 11
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\n" ); document.write( "The numbers are 15 and 4
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\n" ); document.write( "Rewrite the problem:
\n" ); document.write( "x(3y^2 + 11y - 20)
\n" ); document.write( "x(3y^2 + 15y - 4y - 20)
\n" ); document.write( "x(3y(y+5)-4(y+5))
\n" ); document.write( "x(y+5)(3y-4)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "Reply to stanbon@comcast.net
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